ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Inorganic Chemistry  (4)
  • Accommodation  (3)
  • (Human plasma)  (2)
  • (Human plasma protein)  (1)
Collection
Keywords
Publisher
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    BBA - Protein Structure 671 (1981), S. 78-84 
    ISSN: 0005-2795
    Keywords: (Human plasma) ; Amino acid composition ; Microheterogeneity ; Sialic acid content ; α"2HS-Glycoprotein purification
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 0005-2795
    Keywords: (Human plasma) ; Carbohydrate structure ; Glycosylation site ; α"1-Acid glycoprotein
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular 994 (1989), S. 195-199 
    ISSN: 0167-4838
    Keywords: (Human plasma protein) ; Disulfide bond ; α"2HS-glycoprotein
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of comparative physiology 168 (1991), S. 299-303 
    ISSN: 1432-1351
    Keywords: Photorefraction ; Accommodation ; Tytonidae ; Near vision
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In an examination of the focusing abilities of 15 species of owls, the North American barn owl, Tyto alba pratincola (Bonaparte 1838), was an outstanding accommodator, having a range of accommodation exceeding 10 diopters (Murphy and Howland 1983). Using comparable methods, we examined the accommodation of 4 specimens of the Australian barn owl, Tyto alba delicatula (Gould 1837). We failed to elicit accommodation greater than two diopters, and most stimuli failed to evoke any discernable accommodation at all. Furthermore, examination of other Australian tytonid owls, the grass owl, T. longimembris, the sooty owl, T. tenebricosa, and both the mainland and Tasmanian subspecies of the masked owl, T. novaehollandiae novaehollandiae and T. novaehollandiae castanops, also failed to reveal anything but very moderate accommodative ranges. We conclude that the outstanding accommodative ability of the American barn owl is truly an exception to the modest accommodative abilities of the tytonid owls generally.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of comparative physiology 170 (1992), S. 263-266 
    ISSN: 1432-1351
    Keywords: Tuatara ; Sphenodon punctatus ; Accommodation ; Photorefraction ; Corneal curvature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Photorefraction and photokeratometry were performed on two juvenile tuatara (Sphenodon punctatus, 7 years of age, total length approx. 27 cm). Sphenodon is the only surviving genus of the Rhynchocephalia, an order of reptiles. Both existing species are endangered and are found only in New Zealand. Even though Walls (1942) has stated that the ciliary muscle is relatively weak in tuataras, we observed 8 D of accommodation. The eyes were found to focus independently and we could induce an anisometropia of 6 D. The average corneal power of the tuatara was found to be 101 D.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of comparative physiology 170 (1992), S. 687-689 
    ISSN: 1432-1351
    Keywords: Brown kiwi ; Apteryx australis ; Accommodation ; Photorefraction ; Corneal curvature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Brown kiwis are an endangered species of nocturnal, flightless birds which are native to New Zealand. The resting focus of two specimens has previously been studied by retinoscopy in a zoo while the birds were restrained by their keeper (Sivak and Howland 1987). Those birds appeared to be hyperopic (farsighted) by 2–7 D. In this study, examination with infrared photorefraction of the focusing of two unrestrained, feeding birds showed that they could focus objects at infinity and objects in their immediate environment and that they had modest powers of accommodation. Measurements on two 6 month old kiwi chicks showed their corneal radius of curvature to be between 2.90 and 3.00 mm (117 D and 101 D in power).
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 441 (1978), S. 125-164 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Formation of Organosilicon Compounds. 72. The Reactivity of Carbosilanes and their C-Chlorinated Derivatives in Reactions with CH3MgCl and LiCH3Reactions of (H3Si—CH2)2SiH2 1, (H2Si—CH2)3 2, (H3Si)2CCl2 3, (H3Si)2CHCl 4, H3Si—CCl2—SiH2-CH2-SiH3 5, and (H3Si—CCl2)2SiH2 6 as well as H3SiCH2Cl, H3SiCHCl2, and H3SiCCl3 with meMgCl and Lime (me = CH3) respectively are reported. In 1 and 2 by using tetrahydrofurane (THF) as a solvent, methylation to a higher degree is possible. The C-chlorination increases the activation of the Si—H group. Reactions of the C-chlorinated compounds result in Si—H substitution (maintaining of molecular frame), in cleavage and enlargement of the molecular frame and in transformation of CCl2 group into CHCl and CH2 groups respectively. Reactions with meMgCl in THF and with Lime in diethylether (Et2O) favour the cleavage of the molecular and the hydrogenation of the CCl2 group. The methylation of compound 5 occures on the Si—H groups neighbouring the CCl2 groups. The reactivity of these Si—H groups is decreased by increasing methylation. Reacting compound 6 with meMgCl in Et2O cleavage reations dominate. However, using cyclohexane as a solvent this cleavage reaction recedes in favour of the formation of 1,3,5-trisilapentane, containing a CCl2 group and a CHCl or a CH2 group. Thereby however, the methylation of only two SiH groups is observed. The 1H-, 29Si-, and 13C-n.m.r. data allow an assessment of progressing SiH-methylation within the homologous series.
    Notes: Es wird über Umsetzungen von (H3Si—CH2)2SiH2 1, (H2Si—CH2)3 2, (H3Si)2CCl2 3, (H3Si)2CHCl 4, H3Si—CCl2—SiH2—CH2-SiH3 5 und (H3Si—CCl2)2SiH2SiH2 6 sowie von H3Si—CH2Cl, H3Si—CHCl2, H3Si—CCl3 mit meMgCl bzw. Lime (me = CH3) berichtet. In 1 und 2 werden durch Verwendung von Tetrahydrofuran (THF) als Lösungsmittel höhere Methylierungsstufen ermöglicht. Die C-Chlorierung bewirkt eine Aktivierung der Si—H-Gruppe. Die C-chlorierten Verbindungen reagieren unter Si—H Substitution (Erhalt des Molekülgerüstes), unter Spaltungen und Vergrößerungen des Molekügerüstes und unter Hydrierung der CCl2-Gruppe zu der CHCl- bzw. CH2-Gruppe. Bei Umsetzungen mit meMgCl in THF oder mit Lime in Diäthyläther (Et2O) werden Reaktionen begünstigt, die unter Molekülspaltung und CCl2-Hydrierung ablaufen. In 5 beginnt die Methylierung an den der CCl2-Gruppe benachbarten SiH-Gruppen, deren Reaktionsfähigkeit mit steigendem Methylierungsgrad sinkt. Bei 6 bestimmen die Si—C-Spaltungen den Reaktionsablauf (Umsetzung mit meMgCl in Et2O), der aber durch Verwendung von Cyclohexan als Lösungsmittel zurückgedrängt wird zugunsten der Bildung von 1,3,5-Trisilapentanen mit einer CCl2- und einer CHCl- oder CH2-Gruppe, wobei aber nur maximal die Methylierung von zwei SiH-Gruppen erreicht wird. Die 1H-, 29Si- und 13C-NMR-Daten erlauben eine Abschätzung des Verlaufs der SiH-Methylierung innerhalb der homologen Reihen.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 345 (1966), S. 93-105 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The preparation, structure, thermal decomposition and IR spectrum of (Me3Si)2NH → MCl3 (M = Al, Ga) and (Me3Si)3N → AlCl3 (Me = CH3) are reported. Attemps to prepare [(Me3Si)4N]+[SbF6]- are described. From the IR spectrum of (Me3Si)2NH → MCl3 the force constant of the Si—N single bond has been calculated to be 2.87 ± 0.13 mdyn/Å.
    Notes: Es werden Darstellung, Struktur, Thermolyse und Infrarotspektren der Ammoniumverbindungen (Me3Si)2NH → MCl3 (M = Al, Ga) und (Me3Si)3N → AlCl3 (Me = CH3) sowie Darstellungsversuche für [(Me3Si)4N]+[SbF6]- beschrieben. Als Ergebnis einer quantitativen Auswertung der Infrarotspektren im Falle der Verbindungen (Me3Si)2NH → MCl3 ließ sich die Kraftkonstante der Si—N-Einfachbindung zu 2.87 ± 0.13 mdyn/Å festlegen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 394 (1972), S. 197-208 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Beryllium dichloride, magnesium dihalide (hal = Cl, Br, J), boron trihalide (hal = F, Cl, Br) and aluminium trichloride are transformed by trimethylsilyl azide in methylen chloride and ether, respectively, to dimer beryllium chloride azide etherate, polymer beryllium diazide, polymer magnesium halide azide, trimer boron dihalide azide, monomer (in CH3Cl2) aluminium dichloride azide and polymer aluminium chloride diazide, respectively. Magnesium diazide and aluminium triazide are formed by azidation of magnesium diiodide and aluminium trichloride only in connection with magnesium iodide azide and aluminium chloride diazide, respectively. Unlike the covalent azides of beryllium, boron and (possibly) aluminium with α-azido brigdes, the azides of magnesium contain azide ions.
    Notes: Berylliumdichlorid, Magnesiumdihalogenid (Hal = Cl, Br, J), Bortrihalogenid (Hal = F, Cl, Br) bzw. Aluminiumtrichlorid lassen sich mit Trimethylsilylazid in Methylenchlorid bzw. Äther in dimeres Berylliumchloridazid-Ätherat, polymeres Berylliumdiazid, polymeres Magnesiumhalogenidazid, trimeres Bordihalogenidazid, monomeres (in CH2Cl2) Aluminiumdichloridazid bzw. polymeres Aluminiumchloriddiazid überführen. Magnesiumdiazid bzw. Aluminiumtriazid bilden sich durch Azidierung von Magnesiumdijodid bzw. Aluminiumtrichlorid nur im Gemisch mit Magnesiumjodidazid bzw. Aluminiumchloriddiazid. Zum Unterschied von den kovalent gebauten Aziden des Berylliums, Bors und (möglicherweise) Aluminiums mit α-Azidbrücken, enthalten die Azide des Magnesiums ionogen gebundenes Azid.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 1499-1500 
    ISSN: 0044-2313
    Keywords: Methylindium Compound ; Heterocubane ; Synthesis ; X-ray Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The X-Ray Structure Determination of tert-Butylimido Methylindane, [CH3In—NC(CH3)3]4The reaction of MeInCl2 with LiN(H)tBu in a 1 : 2 molar ratio forms [MeIn—NtBu]4 in high yield, lithium chloride, and the free amine H2NtBu. The crystal structure of the imidomethylindane with a cubic In4N4 skeleton has been determined.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...